Organisers claimed half a million people attended the march. Credit: ITV

Celebrities are among the anti-Brexit campaigners, including the Norwich City majority shareholder Delia Smith, who announced earlier this week she would miss the Canaries match against Nottingham Forest to attend the event.

Delia Smith at the People's March Credit: ITV

She said people were not fully informed when they voted but now understood "the dire consequences".

"The only way we can avoid this total madness and win back our future has to be a People's Vote."

Waiting for the coaches in Cambridge. Credit: ITV News Anglia

However Theresa May has repeatedly ruled out holding a second referendum.